How do you solve #a/15=4/5#?
Simply use cross multiplication
hope that helped.
a = 12
Or,5a = 60
Or,a = 12
#"Alternatively multiply both sides of the equation by"#
#"the "color(blue)"lowest common multiple of 15 and 5"#
#"the lowest common multiple of 15 and 5 is 15"#
A fraction's structure is such that we have:
You can not
Multiply by 1 and you do not change the value of something. However, 1 comes in many forms so you change the way something looks without changing its value.
Now that the bottom numbers or size indicators (denominators) are the same we can just compare the top numbers or counts (numerators).
Mathematically you say: multiply both sides by 15#
So we now have:
If we divide the left hand side by the right hand side we will get 1 if they are the same.